California is the hardest State in which to get into med school because there are so many excellent students and so few spots. The UC system CANNOT be supportive of them all.
And getting into med school anywhere is HARD - your odds are low to start with, they’re worse if you"re from CA attending a UC.
So, of course, Californians do get into med schools. But their odds are lower than if they were at another university adnd from another state.
The best systems for CA premeds are those where both “state of residence” and “college graduated from” matter to determine where one might be considered for the state med school. (Many public med schools will mostly consider students they consider residents, either through the regular original “parental residence” process or the “lived/worked/graduated from” classification).
The California kids who are wiped out in the process may very well have made it in Montana, Iowa, Minnesota, Alabama, Maine, or South Carolina.
A good college for premeds should be supportive of premeds, collaborative in peer environment, easy/non competitive access to key activities such as work with a variety of populations (rural poor, , refugees, homeless, non English speakers, urban hospitals, hospice, clinic…) in various respects, both medical and non medical, if possible actual research (ie., not “rinsing out grad students’ beakers” but “work that can lead to a publication as a 4th or 5th author”).
Now, the OP’s list is wildly off, not sure how s/he came up with it. Unless it’s just a list of “colleges that have a med school attached and/or I’ve heard of”.
For instance, BU is one of the most expensive universities in the nation, offers comparatively little financial aid, and is super weedout. Basically the opposite of what a premed needs. In the same city, you have Northeastern, which offers lots of hands on experience through its co-op system, offers ok financial aid to middle class applicants and generous merit aid for high test scores.
JHU is excellent for med school (although ALL med schools are excellent in the US and what really matters is your residency which doesn’t depend on where you complete the first years of med school but on your excellence)… but you wouldn’t be attending the JHU med school. College kids DO NOT mix with medical students. They don’t walk around or take classes in the med school. They don’t get any preference in the med school process that I know of. (Some universities do/may show some preference to their own college graduates, all other things being equal, such as Case Western or Creighton: apply there if that’s what you’re after). You’re better off attending another university (in MD if you wish) then applying to JHU Med School, than attending JHU for college. Now, you can attend JHU for many reasons… but proximity to med school shouldn’t be one of them.